gethostbyaddr
(PHP 3, PHP 4, PHP 5)gethostbyaddr -- Get the Internet host name corresponding to a given IP address
Description
string gethostbyaddr ( string ip_address )
Returns the host name of the Internet host specified by ip_address or a string containing the unmodified ip_address on failure. 例子 1. A simple gethostbyaddr() example<?php
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);
echo $hostname;
?>
(PHP 3, PHP 4, PHP 5)gethostbyaddr -- Get the Internet host name corresponding to a given IP address
Description
string gethostbyaddr ( string ip_address )
Returns the host name of the Internet host specified by ip_address or a string containing the unmodified ip_address on failure. 例子 1. A simple gethostbyaddr() example<?php
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);
echo $hostname;
?>
$server = "whois.internic.net";// 不同的域名有不同的server,并且不只一个。 .com, .net都可以是这个
if ($fp = fsockopen($server, 43)){
fputs($fp, $domain."\r\n");
while (!feof($fp)){
$res .= fgets($fp, 128);
}
}
fclose($fp);